Power-driven device for automatically untwisting yarn to remove the kinks therefrom



Nov. 29, 1927. 1,659,902

AUTOMATICALLY UNTWISTING YARN TO J. O. M 'KEAN POWER DRIVEN DEVICE FOR REMOVE THE KINKS THEREFROM 2 Sheets-Sheet 1 Filed NOV. 1925 INVENTOR f BY ATTORNEYS Nov. 29, 1 927..

J. O. M KEAN POWER DRIVEN DEVICE FOR AUTOMATICALLY UNTWISTING YARN REMOVE THE KINKS THEREFROM 2 Sheets-Sheet 2 Filed NOV. 11, 1925 INVENTOR gz I ATTORNEYS FOP-Eh? 0. TECKEAN, I QKFEELI), MASSAB COMPANY, 615 WESTFIELD, MASSACHUSETTfiA. we:

JLATEQH F Hill. EACBIUQETTS.

POWER-DRIVEN DEVICE F03, AETTQll/IATICALL'Y YARN T6 BE'MQVE THE KINKS Application filed November it has been practically iinpo" iblc to keep yarn from kinking as it passes from the yarn supply to the warping machine. This especially true when the warping machine stops and t e yarn is at rest.

inc invention is to provide set oi n .c driven derice arranged to exert an untwisting roll' 1p; passes therethrough, to automatically untwist and remove the kinks. said device in the present instance comprising a power driven vertical support and a pair ot' coacting plates of considerable diameters carried thereby the lower plate bcii'ig fixed to said supportand the upper plate being grav' operated and rotatable upon the lower place at a higher angular speed by the yarn in its passage bet-ween the plates for exerting the untwisting rolling action on the yarn. The above untwisting device is preferably used in connection with a compensating device which operates to keep the yarn coniparat-ively taut whether the yarn is running or at rest, thereby tending to keep the kinks from forming in the yarn especially when the yarn is at rest.

A practical embodiment of my invention is represented in the accompanying drawings, in which 1 represents a detail side view of a creel with my power driven devices for automatically untwisting the yarn included therein. i 1

Fig. 2 represents a section taken in the plane of the line HH of Fig. 1, looking in the direction of the arrows.

3 represents a detail section on an enlarged scale, showing a cop, the coinpensatii device and the untwisting device.

r i i represents a detail horizontal section taken in the plane oi the line Il -IV cl 3, looking in the direction of the arrows.

The creel frame is denoted by 1, the cops 2 are arranged in a plurality oi vertical rows, the holders 3 for the cops of each vertical row being carried by a vertically disposed supporting bar l pivoted in the creel frame 1 to rock on a vertical axis, to swing the cops to and from their doihng position.

In proximity to each vertical supporting bar l mount a vertically disposed rod 5 around which rod the yarns are wound as they pass from their cops to the warping action on the yarn as it i1, Serial no. cases.

machine (not shown herein). 1 havetound that by winding the yarn around the bar 5 as it leaves the cop, the bar operates to keep the yarn comparatively taut whether yarn is or is not running, thereby tend to take the lrinlrs out of the yarn when T yarn is running and also to keep the kinks itroni forming when the yarn is at rest.

The power driven device for automatically untwisting the kinks from the yarn by a rolling action thereon as it through the device comprises a vertically disposed bar 6 rotatably mounted in the creel frame 1 adjacent to the vertically disposed yarn compensating rod 5,1111Cl a pair o'r upper, and lower coacting plates 7 and 8 0t considerable diameters. The lower plate 8 is secured in its proper'position on the bar 6 by the set srrew 9 and the upper plate 7 rests by grew ity on the lower plate 8 and is freely rotatahle thereon which upper plate may pro vided with one or more weights 10, it so desired.

The vertically disposed bar 6 and the lower plates 8 fixed thereto are slowly rotated at a predetermined speed by providing bar 6 with a worm gear connection l1, l2 shaft 13, driven from the warping ,i'nacnine (not shown herein).

[a opcmt'z'om lil hen the yarn is running it will rotate the upoer plate ata higher an gular speed than thelewer plate is being rotated, thus causing the plates to. exert an untwisting rolling action on the yarn which automatically iiintwists the kinks thereirmn. The positive rotation of the lowerplate ensures the wiping clean ot the coacting sun faces ot' the two plates of the unhinking; device by the yarn passes thcrethrongh.

By making the plates '4' and 8 of consider-- able diameters I am enabled to obtain a very high SLIlIfZICG SPQGCl at. the periphery of the upper plate, the lower plate hei positively rotated at a lower sieed, thus exerting an extended untwisting rolling action on the yarn and also tending to throw foreign matter outwardly, away from between the plates, it being understood that the yarn in passing through the plates acts to wipe their coacting surfaces clean and keep them polished.

1 am aware of the tension devices of the art of somewhat similar construction to the hereindescribed kink removing device, but

1 LLB the washers of these tension devices of the art are universally very much smaller than the kink removing plates of the present invention. These tension devices of the art are incapable of acting to untwist the kinks from the yarn and are not intended to act for this purpose. In fact these tension devices tend to bit the yarn and to run the twist back and form kinks therein. In practice I have found that by making the plates of my kink removing device about four inches in diameter as compared to the one and one-half inch diameter of the washers of the tension devices of the art, I am enabled to obtain extended contact with the yarn and an untwisting rolling action thereon suflicient to remove the kinks therefrom.

\Vhat I claim is 1. A yarn supply cop and a device comprising a pair of coacting rotatable plates having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon as it passes therethrough, said plates having diameters greater than one-halt the length of the cop from which the yarn is being drawn, and means for rotating one of said plates.

2. A yarn supply cop and a device comprising a pair of coacting rotatable plates having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon as it passes therethrough, said plates having diameters greater than one-half the length of the cop from which the yarn is being drawn, means for rotating one of said plates, and a yarn compensating device engaging the yarn as it passes from the yarn supply to the kink removing device, operating to keep the yarn comparatively taut when the yarn is running and at rest.

3. A yarn supply cop and a device comprising a rotatably mounted vertical support and a pair of coacting plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon as it passes therethrough, said plates having diameters greater than one-half the length of the cop from which the yarn is being drawn, the lower plate being fixed to said support and the. upper plate being gravity operated, and means for rotating said vertical support.

4. A yarn supply cop and a device comill com )ensatin device en a in the mm as D D {3 a it passes from the yarn supply to the kink removing device, operating to keep the yarn comparatively taut when the yarn is running and at rest.

5. A plurality of yarn supply cops and a plurality of devices comprising a common rotatably mounted vertical support and a phr rality of pairs of eoacting plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon as they pass therethrough, said plates having diameters greater than one-half the length of the cops from which the yarn is being drawn, the lower plate of each pair being hxed to said support and the upper plate of each pair being gravity operated, and means for rotating said vertical support.

6. A plurality of yarn supply cops and a plurality of devices comprising a common rotatably mounted vertical support and :1 pl urality of pairs of coacting plates carried thereby having an extended contact with the yarn and operable to remove the kinks therefrom by an extended untwisting rolling action thereon as they pass therethrough, said plates having diameters greater than one-half the length of the cops from which the yarn is being drawn, the lower plate of each pair being fixed to said support and the upper plate of each pair being gravity operated, means for rotating said vertical support, and a common yarn compensating device engaging the yarns as they pass from the yarn supplies to their kink removing devices, operating to keep the yarns comparatively taut when the yarns are running and at rest.

In testimony, that I claim the fore oing as my invention. I have signed my name this 9th day of Nov., 1925.

JOHN D. McKlCAN.

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